Acute Pain Service Prescription Examples PAIN PCA (Adult) PCA (Paediatric) PCA Hydromorphone (Adult) Midazolam / Ketamine Nitrous Oxide REGIONAL Thoracic Epidural PIEB/PCEA Erector Spinae Catheter Infusion Brachial Plexus Catheter Infusion Ketamine SC Infusion Neuraxial Opioid Chart